8o 



SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 94 



dophallic bulb. The posterior angle of each endophallic plate is armed 

 internally by a free spinelike process (G), below which the margin 

 of the plate extends obliquely downward and forward to the base of 

 the gonopore process (3')- Between the gonopore processes, as already 

 shown, lies the gonopore, or true genital aperture (fig. 33 C, Gpr), 

 by which the ejaculatory sac (fig. 25 G, H, ejs) communicates with 

 the spermatophore sac {sps) of the endophallus. 



Romalea microptera (Beauvois). — The distal lobe of the ninth ster- 

 num in this species shuts close against the epiproct and paraprocts, 

 so that the pallium is not exposed and the end of the abdomen has a 



Fig. 



A, end 

 floor of 

 view. E 



34. — Male genitalia of Romalea microptera (Cyrtacanthacrinae). 



of abdomen. B, epiphallus, dorsal view. C, epiphallus and aedeagus on 



genital chamber, lateral view. 

 , same, dorsal view. 



D, aedeagus and endophallus, lateral 



truncate f6rm (fig. 34 A). The epiphallus is deeply sunken in the 

 anterior end of the genital chamber, and the basal fold rises steeply 

 against the anterior surface of the aedeagus (C), concealing inost of 

 the basal parts of the latter. The dorsal lobe of the aedeagus has a 

 well-developed cylindrical distal part (D, r) from which project two 

 pairs of apical processes {n, p). The proximal part (in) bears a pair 

 of short but very wide lateral apodemes (D, E, Apa). The endophal- 

 lus is relatively small, but the anterior apodemes (iv) of its lateral 

 plates are large and widely divergent (E). 



Schistocerca amcricana (Drury). — -The elongate subgenital plate of 

 the ninth abdominal sternum of this species has a broad, deeply emargi- 



